[nswnra] Dew Heaters

  • From: "Corona Australis" <corona_australis@xxxxxxxxxxxxxx>
  • To: <nswnra@xxxxxxxxxxxxx>
  • Date: Tue, 31 Aug 2010 22:21:16 +1000

Now that the elections are over and the footy has quitened down I have an 
astronomical question.

 

Iam having a few problems with a dew heater for my secondary mirror in my 10" 
dob. Astrosystems advise 

 

they can't supply the units due to the mirror size being 2.27". They have only 
2.13" and 2.6". Is it feasible

 

to change the mirror to a smaller or larger one, and if so would their be any 
draw backs.

 

Vince

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